| 摘要 |
PURPOSE: A composition of vapor phase corrosion inhibitors is provided to protect a metal for piping from atmospheric corrosion by making VCI components adsorbed and condensed on metal surface. CONSTITUTION: A composition of vapor phase corrosion inhibitors comprises multi-substitution pyrimidine, monoalkyl urea, C3 to C5 aminoalkyldimethyl, and benzotriazole, substituted or unsubstituted on benzene ring. The polysubstitute pyrimidine is additionally composed of 2,4-dihydroxy-5-methylpyrimidine, 2-amino-4-methylpyrimidine, 2-amino-4-methoxy-6-methylpyrimidine, 2-amino-4,6-dimethylpyrimidine(cytoxyaminopyrimidine) or their mixture. |
